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Select the wrong statement

A

If a very small amount of `AlCl _(3)` is added to gold so, coagulation occurs, but if a large quantity of `AlCl _(3)` is added, there is no coagulation

B

Organic ions are more strongly adsorbed on charged surfaces in comparison to iorganic ions.

C

Both emulsifier and peptising agents stabilies colloids but their actions are different.

D

Colloidal solutions are thermodynamically stable.

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The correct Answer is:
A
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MODERN PUBLICATION-SURFACE CHEMISTRY -MULTIPLE CHOICE QUESTIONS (LEVEL -II)
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  2. Which of the following is less than sero during adsorption?

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  3. Adsorption of gases on solid surface is generally an exothermic proces...

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  4. Alum helps in purifying water by:

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  5. Which of the following statements is not correct regarding physical ad...

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  6. Rate of physisorption increases with:

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  7. Identify the correct statement regarding enzymes:

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  8. Volume of a colloidal particle, V(c ) as compared to the volume of a s...

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  9. The coagulating power of an electrolyte for arsenious sulphide sol dec...

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  10. Select the wrong statement.

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  11. Select the wrong statement

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  12. Adsoption is an exothermic process. The amount of substance adsorbed s...

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  13. Which one of the following impurities present in colloidal solution ca...

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  14. The disease kala azar is cured by

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  15. Which is correct about physical adsorption?

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  16. In the adsorption of a gas on solid, Freundlich isotherm is obeyed. Th...

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  17. between 0 and 1 in all cases

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  18. Which one of the following statements is incorrect about enzyme cataly...

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  19. In which of the following reactins heterogenous catalysis is involved ...

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